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Poland’s efforts to extend geothermal energy beyond heating and recreation into geothermal food production offer another signal New Zealand should be watching closely. Polish researchers are examining geothermal heat for protected cropping, aquaculture, agricultural drying and food processing. Existing applications remain limited, but include geothermal-supported fish farming, vegetable cultivation and some food-processing activity.

The concept is simple but powerful. Imagine a Taupo Bio Valley stretching across New Zealand's geothermal corridor, where renewable energy, industrial heat and biotechnology come together to produce the next generation of food ingredients and nutritional products. Precision fermentation facilities could manufacture animal-free whey protein, casein, collagen and specialised food ingredients using microbes rather than livestock. Geothermal energy would provide the stable power